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Table 2 Effect of LEP peers on reading test scores, Non-LEP students

From: The effect of sharing a mother tongue with peers: evidence from North Carolina middle schools

  NL1   NL2   NL3   NL4  
Peer Characteristics         
% LEP −0.106 *** −0.106 *** −0.130 *** −0.075 *
  (0.042)   (0.042)   (0.050)   (0.044)  
School % LEP      0.049    
      (0.054)    
LEP Herfindahl Index    0.002   0.004   −0.0005  
    (0.003)   (0.006)   (0.003)  
School LEP Herfindahl      −0.003    
      (0.007)    
% Female −0.003   −0.003   −0.003   0.010  
  (0.024)   (0.024)   (0.024)   (0.028)  
% Black 0.002   0.002   0.002   0.042  
  (0.025)   (0.025)   (0.025)   (0.029)  
% Hispanic 0.027   0.025   0.025   0.059  
  (0.043)   (0.043)   (0.043)   (0.046)  
% FRL Student −0.072 *** −0.072 *** −0.072 *** −0.103 ***
  (0.014)   (0.014)   (0.014)   (0.015)  
% Transfer 0.006 * 0.006 * 0.006 * 0.001  
  (0.003)   (0.003)   (0.003)   (0.004)  
Mean Std. Score −0.082 *** −0.082 *** −0.082 *** −0.083 ***
  (0.007)   (0.007)   (0.007)   (0.008)  
SD Std. Score −0.045 *** −0.045 *** −0.046 *** −0.060 ***
  (0.010)   (0.010)   (0.010)   (0.012)  
Student Characteristics         
Last Yr. Std. Score −0.276 *** −0.276 *** −0.276 *** −0.277 ***
  (0.002)   (0.002)   (0.002)   (0.002)  
FRL Student 0.002   0.002   0.002   0.002  
  (0.002)   (0.002)   (0.002)   (0.002)  
Transferred Schools 0.013 *** 0.013 *** 0.013 *** 0.014 ***
  (0.002)   (0.002)   (0.002)   (0.002)  
Observations 597,036   597,036   597,036   447,983  
Exclude Grades w/o LEPs? No No No Yes  
Student Fixed Effects? Yes   Yes   Yes   Yes  
School Fixed Effects? Yes   Yes   Yes   Yes  
Grade-by-year Fixed Effects? Yes   Yes   Yes   Yes  
  1. Notes: In addition to the variables shown, each regression also includes control variables for grade size and for the teacher characteristics listed in Table 1. Standard errors clustered at the school + grade + year level (such as Washington Elementary, 3rd Grade, 2008) are in parentheses. *, **, and *** denote statistical significance of a two-sided test at the ten, five, and one-percent levels, respectively.